For more details, including developers involved and dates, see the
ChangeLogs, or use CVS diff to view the patches.
+to 21.4.12 "Portable Code"
+
+-- Fix: Type typos (welcome back!) -- Martin Buchholz
+-- Fix: Cygwin link breakage with new binutils -- Sergey Okhapkin
+-- Fix: Cygwin: Bump stack size to 8MB for large regexps -- Andy Piper
+-- Fix: Cygwin build breakage from Ben's printing patch -- Rick Rankin
+-- Fix: Don't require GNOME for Mozilla -- Ville Skyttä
+-- Fix: nnimap hangs in process output -- Daiki Ueno
+-- Update: about.el information -- Ilya Golubev
+-- Update: More tests/automated/regexp-tests.el cases -- Stephen Turnbull
+
to 21.4.11 "Native Windows TTY Support"
-- (**) More menubar options for browse-url -- Ville Skyttä